Results 111 to 120 of about 3,396 (226)

Recent Progress of Low Dielectric and High-Performance Polybenzoxazine-Based Composites. [PDF]

Polymers (Basel), 2023
Fan Z, Li B, Ren D, Xu M.
europepmc   +1 more source

Synthesis of 2-substituted 3,4-Dihydro-2H-1,4-benzoxazines in water under phase transfer catalysis conditions

, 2002
2-Substituted 3,4-dihydro-2H-1,4-benzoxazines have been prepared in excellent yields and short reaction times through the cyclization of hydroxysulfonamides in water under PTC ...
D. Landini, V. Lupi, D. Albanese, M. Penso   +3 more
core   +1 more source

Research progress in cardanol-based flame retardant polymer materials

Cailiao gongcheng
With the increasing awareness of environmental protection and the proposal of the national carbon peak strategy， the use of renewable bio-based resources for the preparation of flame retardant polymer materials has received widespread attention. Cardanol
WANG Xin, NIU Haoxin, HU Yuan
doaj   +1 more source

Phenolic Naphthoxazines as Curing Promoters for Benzoxazines

, 2018
The effect of phenolic hydroxyl bearing naphthoxazines as catalysts for the ring-opening polymerization (ROP) of simple 1,3-benzoxazines was investigated.
Baris Kiskan (743416), Yusuf Yagci (743419), Gizem Kaya (4865902)   +2 more
core   +1 more source

Design and Synthesis of Novel Antioxidant 2-Substituted-5,7,8-Trimethyl-1,4-Benzoxazine Hybrids: Effects on Young and Senescent Fibroblasts

Antioxidants
The exponential growth of the aged population worldwide is followed by an increase in the prevalence of age-related disorders. Oxidative stress plays central role in damage accumulation during ageing and cell senescence.
Theano Fotopoulou, Adamantia Papadopoulou, Andromachi Tzani, Michail Mamais, Eleni Mavrogonatou, Harris Pratsinis, Maria Koufaki, Dimitris Kletsas, Theodora Calogeropoulou   +8 more
doaj   +1 more source

Facile, One-Pot Synthesis of Aromatic Diamine-Based Benzoxazines and Their Advantages Over Diamines as Epoxy Hardeners

, 2014
Three aromatic diamine-based benzoxazines were successfully prepared by a facile, clean, one-pot procedure from 1,4-phenylenediamine (1), 4,4'-diaminodiphenyl ether (2), and 4,4'-diaminodiphenyl methane (3), respectively.
Lin, C.H., Chang, S.L., 林慶炫
core   +1 more source

Benzoxazine Derivatives As CRAC Modulators [PDF]

ACS Medicinal Chemistry Letters, 2013
openaire   +2 more sources

Enzyme-Catalysed Multicomponent Reactions (MCRs) for the Green Synthesis of Bioactive Heterocycles-A Review

Results in Chemistry
The increasing need for sustainable and eco-friendly chemical processes has driven considerable interest in biocatalysis and multicomponent reactions (MCRs) as greener approaches in organic synthesis.
Venkatesan K., Magdi E.A. Zaki, Sook-Keng Chang, Ling Shing Wong, Sobhi M. Gomha   +4 more
doaj   +1 more source

Exploiting the Dual Reactivity of o-Isocyanobenzamide: Three-Component Synthesis of 4-Imino-4H-3,1-benzoxazines

A multicomponent synthesis of 4-imino-4H-3,1-benzoxazines I [R1 = H, MeO; R2 = n-Bu, PhCH2, PhCH2CH2, (S)-PhCH2CH(CO2Me), etc.; R3 = H, Me2CH, cyclohexyl, n-hexyl; R4 = H, R5 = n-Bu, MeO2CCH2CH2, PhCH2, 9-fluorenylmethyl; R4 = R5 = Me; R4R5N = morpholino]
Dekhane, Mouloud, Bonne, Damien, Zhu, Jieping   +2 more
core   +1 more source

Efficient Synthesis of [1,2,3]triazolo[5,1-c][1,4]Benzoxazines Through Palladium–copper Catalysis

, 2009
A wide variety of [1,2,3]triazolo[5,1-c][1,4]benzoxazines were synthesized through palladium-copper catalyzed reactions of 1-azido-2-(prop-2-ynyloxy)benzene with aryl/vinyl iodides.
Dutta, Pradeep Kumar, Anup Kumar Sasmal, Choudhury, Chinmay, Chinmay Chowdhury, Sasmal, Anup Kumar, Pradeep Kumar Dutta   +5 more
core   +1 more source